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An application programming interface for making digital resources and capabilities available in many different types of applications and integrations.

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OAuth 2.0 Authorization Server API

API specification for an OAuth 2.0 authorization server implementing the authorization endpoint, token endpoint, and token revocation endpoint as defined in RFC 6749, RFC 6750, and RFC 7009.

OCI Compute API

REST APIs for managing compute instances in Oracle Cloud Infrastructure, including launching, managing, and terminating virtual machine and bare metal instances, managing instance configurations, p...

ODFL Bill of Lading API

Submits electronic bills of lading to the Old Dominion Freight Line billing system, generating shipping labels and BOL documents. Used by shippers to programmatically create freight documentation.

ODFL Document API

Retrieves PDF documents associated with shipments, including bills of lading and delivery receipts, by PRO number. Used to programmatically pull shipment documentation from Old Dominion Freight Line.

ODFL Pickup API

Processes electronic pickup requests for one or more shipments. Returns pickup numbers and PPIDs that shippers use to confirm and track pickup requests with Old Dominion Freight Line.

ODFL Tracking API

Provides shipment status information for ODFL freight movements. Used to integrate real-time and historical freight tracking data into shipper and partner systems.

OFAC Sanctions List Service API

Specially Designated Nationals (SDN) and Consolidated Sanctions lists from the Office of Foreign Assets Control, with structured search.

OKEx

Cryptocurrency exchange based in Seychelles

OKX Trading API

REST and WebSocket endpoints for order book trading, algo orders, block trading, spread trading, and copy trading across spot, futures, options, and perpetual swap instruments.

OMDb API

RESTful web service returning movie, series, and episode metadata sourced from IMDb identifiers or title searches. Returns title, year, genre, director, cast, ratings (IMDb, Rotten Tomatoes, Metacr...

OP Mainnet JSON-RPC

Public Ethereum JSON-RPC endpoint for OP Mainnet (chain ID 10). Supports standard eth_* methods plus Optimism extensions for L1 fee estimation, deposit tracking, and withdrawal proving. Public endp...

OP Sepolia JSON-RPC

Public Ethereum JSON-RPC endpoint for the OP Sepolia testnet (chain ID 11155420) used for development and integration testing.

OPAL (Open @ La Trobe) Figshare REST API

OPAL is La Trobe University's institutional open-access repository, hosted on the Figshare platform. Figshare exposes a public, documented REST API; La Trobe's portal records are retrievable via th...

OPay Cashier API

The OPay Cashier API is the primary merchant payment API behind OPay Checkout. It exposes a hosted Express Checkout endpoint (cashier/create returning a cashierUrl), server-to-server payment creati...

ORCID Public API

The ORCID Public API allows reading publicly available data from ORCID records. Based on version 3.0 of the ORCID message schema.

ORDA Research Data Repository (figshare API)

ORDA is the University of Sheffield's online research data catalogue and repository, hosted on the figshare platform. Public datasets, their metadata and DOIs are accessible programmatically throug...

OSIsoft PI Web API

OSIsoft PI Web API (now part of AVEVA) provides a REST interface for accessing the PI System process historian. APIs enable real-time and historical time-series data retrieval, event frame queries,...

OSTI.GOV API

The OSTI.GOV API provides access to the Department of Energy's repository of research information resulting from DOE research funding. Query scientific publications, technical reports, datasets, an...

OSV (Open Source Vulnerabilities) API

OSV is an OpenSSF-hosted distributed vulnerability database and query infrastructure. The OSV API at api.osv.dev exposes vulnerability records keyed to specific package versions or commits across m...

OVH Cloud API

The OVHcloud API enables programmatic management of OVHcloud resources including dedicated servers, public cloud instances, storage, networking, Kubernetes, load balancers, container registries, da...

OWASP ZAP API

The HTTP API for controlling and accessing ZAP. Supports automation of access control scans, active and passive scanning, spidering, authentication, alerts, contexts, reports, scripts, and many mor...

Object Storage API

Store and retrieve large amounts of unstructured data.

Obsidian Local REST API

Community-built plugin (by @coddingtonbear) that exposes the Obsidian vault over a local HTTPS REST API on port 27124. Endpoint groups include Vault file CRUD, Active File, Periodic Notes (daily/we...

Oceanforecast API

Ocean forecasts for points at sea in Northwestern Europe, providing wave height, sea temperature, current direction and speed, and salinity.

Ocelot Administration API

The Ocelot Administration API allows runtime changes to gateway configuration via an authenticated HTTP API. It supports updating routes and clearing cache regions without restarting the gateway, a...

Octane REST API

REST API for managing meters, customers, pricing plans, subscriptions, measurements, and real-time usage data for usage-based billing workflows.

Octoparse

Octoparse is your no-coding solution for web scraping to turn pages into structured data within clicks.

Octopus Energy Public API

The Octopus Energy Public API is a free, JSON-over-HTTPS REST API exposing the company's full UK product catalog, electricity and gas tariff pricing, electricity and gas meter-point information, ha...

OddsJam API

Real-time sports betting odds API from 100+ sportsbooks with player props, alternate markets, injury data, schedules, rankings, and scores.

Odos Smart Order Router API

The Odos Smart Order Router (SOR) API provides REST endpoints for obtaining optimal token swap quotes, assembling swap transaction data, and executing multi-token swaps across 15 EVM-compatible blo...

Offenders.io

Industry-leading database of National Registered Sex Offenders API for the United States. Supports criteria-based search (name, dob, city, zip, state), facial recognition, geospatial radius queries...

Office 365 Groups API

Manage Microsoft 365 groups, group membership, conversations, and group-related resources for collaboration.

Office 365 Users API

Manage Office 365 users, profiles, and organizational information.

Office JavaScript API for Word

JavaScript API for building Word add-ins and automating Word tasks. Provides strongly-typed objects for document manipulation, content controls, tables, formatting, comments, collaboration, and sha...

Office of the Federal Register

Search, browse and learn about the Federal Register. Federal Register 2.0 is the unofficial daily publication for rules, proposed rules, and notices of Federal agencies and organizations, as well a...

Okra Accounts & Balance API

Retrieves a record's linked accounts and real-time ledger and available balances, filterable by id, customer, account, balance type, and date range.

Okra Auth & Link API

Connects a customer's bank account via the Okra Link widget and retrieves authentication records - account and NUBAN numbers across current, savings, and domiciliary accounts - filterable by id, cu...

Okra Identity & Income API

Retrieves KYC identity on file with the bank (names, emails, phone numbers, addresses) and verifies a customer's income data drawn from their connected accounts.

Okra Payments API

Collects one-time and recurring bank-to-bank payments via USSD and internet banking, creates instant and future payments, retrieves and verifies payment status, and supports bulk debits via CSV upl...

Okra Transactions API

Returns customer-authorized transaction history of up to 24 months across current, savings, and domiciliary accounts, filterable by customer, account, bank, and date, plus a spending-pattern analys...

Okra Webhooks API

Delivers asynchronous callbacks to a configured callback_url when Okra finishes processing a product's data for a Record, and lets you re-trigger callbacks for a set of record ids.

Okta API

The Okta Management API is the unified identity and access management interface for the Okta Workforce Identity Platform. It allows developers to integrate authentication, authorization, user/group...

Ollama API

Ollama provides a REST API for running and managing large language models locally. The API supports text generation, chat completions, embeddings, model management, and streaming responses. It serv...

Olo Loyalty API

Olo Loyalty (formerly OloEngage) lets restaurant brands run rewards programs that are tightly bound to the Ordering and POS surfaces - accrual, redemption, tier evaluation, and single-sign-on flow ...

Olo Ordering API

The Olo Ordering API is the platform's flagship order-injection surface, enabling certified partner apps, branded restaurant clients, and white-label storefronts to push custom orders, baskets, and...

Olo Rails API

Olo Rails is the marketplace-delivery integration surface, accepting orders originated on third-party delivery marketplaces (DoorDash, Uber Eats, Grubhub, Google, and 25+ other channels) and inject...

Olo Webhooks

Olo exposes outbound webhooks that fire on order lifecycle events (placed, confirmed, ready, completed, refunded), gift-card activity, loyalty accrual / redemption, tender events, and marketplace s...

Olympus Protocol Metrics API

Cacheable REST API serving daily protocol metrics, treasury asset records, and OHM supply data for the Olympus protocol across six EVM chains (Ethereum, Arbitrum, Base, Polygon, Fantom, Berachain)....

Omnisend REST API

Omnisend's REST API for ecommerce email and SMS marketing automation. Manage contacts, events, products, product categories, segments, campaigns, batches, email templates, email content, email univ...

On Demand Flight Status

Returns the real-time status (scheduled, delayed, departed, landed) and detailed itinerary of a specific flight on a specific date.

One Call API 4.0

Unified weather timeline including current conditions, hourly, daily, 1-minute precipitation, 15-minute forecasts, government weather alerts, and 47 plus years of historical data via pay-per-call p...

OneAtlas WorldDEM API

The OneAtlas WorldDEM API is a tool that provides access to high-resolution global elevation data. This data, collected by satellites and processed using advanced technologies, offers a detailed an...

OneBusAway REST API

RESTful web service providing real-time and scheduled transit data for agencies running the OneBusAway platform. Endpoints cover agencies with coverage, individual agency details, routes, stops, tr...

OneDrive API

Access to OneDrive file storage, sharing, and collaboration features.

OneDrive API

Access and manage files stored in OneDrive and SharePoint.

OneLogin API

OneLogin REST API for identity and access management. The API follows RESTful principles, is secured by OAuth 2.0, and provides JSON messages with search, pagination, sorting, and filtering. Resour...

OneSignal Apps & Keys API

Manage apps, API keys and templates at the org level.

OneSignal Exports & Analytics API

CSV export of subscriptions and events plus message analytics.

OneSignal Messages API

Send push, email, SMS, and Live Activity messages.

OneSignal Segments API

Create and manage dynamic and saved segments for targeting.

OneSignal Users & Subscriptions API

Create, update, view and delete users and their subscriptions.

OneUptime

OneUptime is an open source observability platform combining monitoring, incident management, status pages, and on-call scheduling in one OpenTelemetry-native tool.

Onfido

Create trust at onboarding and beyond with a complete, AI-powered digital identity solution built to help you know your customers online. Automation allows you to acquire new customers and reduce c...

Onfleet Destinations API

Manage geocoded physical addresses used as task pickup/dropoff locations. Accepts a parsed address structure or a single `unparsed` field; coordinates are returned as GeoJSON [longitude, latitude].

Onfleet Orders API

Orders represent a pickup-dropoff task pair shared between a courier organization and its clients on the Onfleet Connect network. Clients can quote, create, update, clone, cancel, or reject orders;...

Onfleet Organizations & Teams API

Look up your own organization and connected delegatee organizations on Onfleet Connect, manage administrators (Super and Standard, optionally read-only), create and list teams, and trigger Team Aut...

Onfleet Recipients API

Create and look up end customers (recipients) by ID, name, or E.164 phone number. Recipients carry SMS notification preferences and metadata, and can be reused across tasks.

Onfleet Route Plans API

Create and manage route plans — ordered sequences of tasks assigned to a worker for a time window — and kick off asynchronous route optimization jobs (task-based, vehicle-based, or auto-dispatch). ...

Onfleet Tasks API

Create, list, fetch, update, clone, force-complete, and delete pickup/dropoff tasks. Tasks are the atomic unit of work in Onfleet — each has a destination, recipient, completion window, optional de...

Onfleet Webhooks API

Register HTTPS callbacks against 27 trigger types covering task lifecycle, worker duty/CRUD, route plan state changes, SMS recipient events, and async job completions (auto-dispatch, task batch cre...

Onfleet Workers API

Manage drivers — create, list, update, delete, fetch a worker's assigned tasks, and pull a delivery manifest for compliance reporting. Workers are bound to teams, have vehicle metadata (CAR/MOTORCY...

Onomondo Apps & Connectors API

Create, update, and delete Connectors (Apps) that forward device traffic to cloud destinations such as HTTPS, TLS, Microsoft Azure IoT, and AWS IoT Core, plus search organization Tags used to group...

Onomondo Networks API

Create, retrieve, update, and delete Network Lists - named allow-lists of MCC/MNC network entries with associated Tags that control which mobile networks SIMs may attach to.

Onomondo SIMs API

List, find, retrieve, and update SIMs across an IoT fleet, including activation state, data limits, network lists, IMEI lock, supported technologies, and tag assignment (single and bulk).

Onomondo Usage & Traffic API

Retrieve data usage for all SIMs, an individual SIM, or aggregated by Tag, plus SMS usage records. Complements the Traffic Monitor tooling for real-time packet-level traffic inspection.

Onomondo Webhooks & Notifications API

Manage webhooks that deliver near-real-time SIM events (usage, network registration/deregistration/authentication, SMS, location, and cost-alert) as HTTP POST callbacks, with Tag-based filtering an...

Open Brewery DB

Open Brewery DB is a free dataset and API with public information on breweries, cideries, brewpubs, and bottleshops. The API provides access to 11,000+ brewery records across 23+ countries with no ...

Open Component Model API

Open Component Model (OCM) provides a standard for describing software components in a supply chain, enabling teams to track, reference, and verify software artifacts.

Open Connectivity for Tours, Activities, and Attractions

OCTO API specification for connecting tours, activities, and attractions platforms with resellers and OTAs.

Open Container Initiative

The Open Container Initiative (OCI) is an open governance structure for creating open industry standards around container formats and runtimes, including the Runtime Specification, Image Specificat...

Open Data @ UCLouvain Dataverse API

UCLouvain's institutional research-data repository runs on Dataverse (v6.8 at time of review) and exposes the standard Dataverse Native and Search APIs under /api, allowing programmatic search and ...

Open Exchange Rates API

RESTful JSON API delivering live and historical foreign exchange rates for 200+ world and digital currencies. Supports latest rates, historical end-of-day rates, time-series queries, currency conve...

Open Exchange Rates API

Real-time and historical exchange rates with simple JSON API.

Open FactSet Database (OFDB) API

Through Open FactSet Database (OFDB) API, users can create, modify and view non portfolio databases.

Open FactSet Partners - Documents

Access to all job listing files provided by the OFM Partners: LinkUp.

Open Food Facts

Open Food Facts is a collaborative, free, open database of food products from around the world maintained by a global community of contributors. Its REST API exposes ingredients, nutrition facts, a...

Open Food Facts

Open Food Facts is a food products database made by everyone, for everyone. You can use it to make better food choices, and as it is open data, anyone can re-use it for any purpose.

Open Liberty

Open Liberty is a lightweight, open source Java application server from IBM for building cloud-native microservices and applications with full support for Jakarta EE and MicroProfile.

Open Liberty APIs

Open Liberty provides application programming interfaces that extend and complement Jakarta EE and MicroProfile APIs. Includes APIs for security, admin connectors, batch processing, messaging, and ...

Open Policy Agent Compile API

API for partially evaluating Rego queries in OPA (Open Policy Agent).

Open Policy Agent Config API

API for retrieving OPA's active configuration, including discovered configurations.

Open Policy Agent Data API

API for reading and writing documents in OPA (Open Policy Agent).

Open Policy Agent Health API

API for checking the health and readiness of an OPA (Open Policy Agent) server.

Open Policy Agent Policy API

API for managing policy modules, allowing CRUD operations on Rego policy files stored in OPA.

Open Policy Agent Query API

API for executing simple and ad-hoc queries in OPA (Open Policy Agent).

Open Policy Agent Status API

API for accessing OPA (Open Policy Agent) status information via a pull-based mechanism.

Open Research Newcastle (Figshare REST API)

Open Research Newcastle is the University of Newcastle's institutional open access repository, launched in 2025 on the Figshare platform after migrating from the former NOVA repository. Its records...

Open Resource Discovery API

Open Resource Discovery (ORD) is a protocol for machine-readable resource and capability discovery, enabling API management platforms to automatically discover what services and APIs an application...

Open States API v3

REST API providing programmatic access to US state legislative data including jurisdictions, legislators, bills, committees, and events. Requires an API key obtained from open.pluralpolicy.com. Res...

Open Trivia DB

Free JSON trivia question API supporting categories, difficulties, question types, encodings, and optional session tokens to avoid duplicate questions across requests.

Open Trivia Database API

JSON REST API that returns multiple-choice and true/false trivia questions drawn from a community-curated database of over 5,000 verified questions across 24 categories. Supports filtering by categ...

Open XML SDK for Word

.NET library for programmatically creating and manipulating Word documents using the ECMA-376 Open XML standard. Provides strongly-typed classes for document structure, styles, tables, images, and ...

OpenAI Assistants API

API for building AI assistants with custom instructions and tool access.

OpenAI Assistants API

The Assistants API allows you to build AI assistants within your own applications. An Assistant has instructions and can leverage models, tools, and knowledge to respond to user queries. The Assist...

OpenAI Audio API

API for audio capabilities including text-to-speech generation, speech transcription, and translation using Whisper and other audio models.

OpenAI Audio API

API for speech-to-text transcription and text-to-speech generation.

OpenAI Audio API

The Audio API provides two speech to text endpoints, transcriptions and translations, based on our state-of-the-art open source large-v2 Whisper model.

OpenAI Batch API

API for sending asynchronous groups of requests at lower cost with a separate pool of significantly higher rate limits, supporting chat completions, embeddings, and completions endpoints.

OpenAI Chat API

Given a list of messages comprising a conversation, the model will return a response., providing an AI chat interface you can use to engage with users.

OpenAI Chat Completions API

API for conversational AI using GPT models.

OpenAI Chat Completions API

Chat models take a list of messages as input and return a model-generated message as output. Although the chat format is designed to make multi-turn conversations easy, it's just as useful for sing...

OpenAI Completions API

Legacy text completion API for generating text continuations from a prompt.

OpenAI Completions API

The legacy Completions API endpoint provides a freeform text completion interface using a text prompt. Unlike the Chat Completions endpoint which uses a list of messages, the Completions API input ...

OpenAI Embeddings API

API for generating embedding vectors from input text using models like text-embedding-3-small and text-embedding-3-large, useful for search, clustering, and recommendations.

OpenAI Embeddings API

API for converting text into vector representations.

OpenAI Embeddings API

Learn how to turn text into numbers, unlocking use cases like search. OpenAI's text embeddings measure the relatedness of text strings.

OpenAI Files API

API for uploading and managing files used across OpenAI features including fine-tuning, assistants, batch processing, and vision.

OpenAI Files API

Files are used to upload documents that can be used with features like Assistants and Fine-tuning. Upload a file that can be used across various endpoints. The size of all the files uploaded by one...

OpenAI Fine Tuning API

Manage fine-tuning jobs to tailor a model to your specific training data. Creates a fine-tuning job which begins the process of creating a new model from a given dataset.Response includes details o...

OpenAI Fine-Tuning API

API for creating and managing fine-tuning jobs to customize OpenAI models on your own training data, supporting supervised fine-tuning and direct preference optimization.

OpenAI Images API

API for generating and editing images from text prompts using DALL-E and GPT Image models, supporting image generations, edits, and variations.

OpenAI Images API

API for generating, editing, and creating image variations using DALL-E.

OpenAI Images API

Learn how to generate or manipulate images with DALL_E in the API. The Images API provides three methods for interacting with images - creating images from scratch based on a text prompt, creating ...

OpenAI Models API

API for listing and retrieving information about available OpenAI models, including details on permissions and capabilities.

OpenAI Models API

List and describe the various models available in the API. You can refer to the Models documentation to understand what models are available and the differences between them.

OpenAI Moderations API

API for classifying text and images to detect potentially harmful content across categories like hate, violence, and self-harm.

OpenAI Moderations API

API for detecting potentially harmful or unsafe content across text and images.

OpenAI Realtime API

API for real-time multimodal communication with models over WebRTC, WebSocket, and SIP, supporting speech-to-speech, text, image, and audio inputs and outputs with ultra-low latency.

OpenAI Realtime API

The Realtime API enables low-latency, bidirectional communication with models that natively support speech-to-speech interactions as well as multimodal inputs (audio, images, and text) and outputs ...

OpenAI Responses API

The Responses API is OpenAI's recommended API primitive for new projects, an evolution of Chat Completions with built-in tools like web search, file search, code interpreter, and support for agenti...

OpenAI Threads API

Create threads that assistants can interact with.

OpenAI Uploads API

API for uploading large files in multiple parts, supporting files up to 8 GB for use with fine-tuning, assistants, and batch processing.

OpenAI Vector Stores API

API for creating and managing vector stores used by the file search tool, supporting collections of processed files for retrieval-augmented generation.

OpenAQ

OpenAQ is a nonprofit organization providing universal access to air quality data to empower a global community of changemakers to solve air inequality-the unequal access to clean air.

OpenAgri Farm Calendar

Django REST API for digital farm calendar management. Records farmer operations (planting, spraying, harvesting, irrigation), farm observations, parcel properties, and farm assets. Provides data in...

OpenAgri Weather Service

FastAPI-based weather service providing 5-day forecasts, current conditions, Temperature-Humidity Index (THI) for livestock heat stress, UAV flight condition forecasts, and spray condition assessme...

OpenCart REST API

The OpenCart REST API enables external applications to communicate with an OpenCart store for managing products, categories, orders, customers, manufacturers, and returns. Authentication uses API u...

OpenCitations Index API

REST API for accessing citation entities in the OpenCitations dataset. Provides citation counts, incoming/outgoing reference lookups, and citation metadata by DOI, PMID, or OMID. Aggregates data ac...

OpenCitations Meta API

REST API for retrieving bibliographic metadata associated with documents involved in citations. Supports lookup by DOI, ISSN, ISBN, OMID, OpenAlex ID, PMID, and PMCID. Also provides author and edit...

OpenCorporates API

REST API providing access to the world's largest open database of companies. Search and retrieve company registration data, officer information, corporate filings, and jurisdiction data across more...

OpenCost API

The OpenCost REST API exposes real-time and historical reporting of Kubernetes workload costs and underlying cloud infrastructure spend, including allocation, asset, and cloud cost endpoints.

OpenCue

OpenCue is an open source render management system for visual effects and animation productions. It enables studios to deploy and manage a render farm, schedule jobs, and track progress across larg...

OpenF1 API

OpenF1 is a free and open-source REST API that provides real-time and historical Formula 1 data, including car telemetry at 3.7 Hz, sector and lap timing, race control flags, pit stops, tyre stints...

OpenFEC API

RESTful web service supporting full-text and field-specific searches on Federal Election Commission data including candidates, committees, and financial data.

OpenFEMA API

The OpenFEMA API is FEMA's public RESTful service that exposes more than 70 datasets including disaster declarations, public assistance funded projects, individual assistance grants, hazard mitigat...

OpenFEMA API

The OpenFEMA API provides programmatic access to FEMA's public datasets including disaster declarations, public assistance, individual assistance, hazard mitigation grants, and the National Flood I...

OpenFEMA Fire Data API

The OpenFEMA API provides free, read-only REST access to FEMA and USFA datasets including the National Fire Incident Reporting System (NFIRS) annual public data, disaster declarations, and other em...

OpenFGA Authorization API

The OpenFGA API provides HTTP and gRPC endpoints for fine-grained authorization. Key operations include Check for evaluating access decisions, Write for managing relationship tuples, Read for query...

OpenFIGI API

OpenFIGI is your entry point to multiple tools for identifying, mapping and requesting a free Financial Instrument Global Identifier (FIGI). OpenFIGI is an open system for identifying instruments g...

OpenFIGI API

OpenFIGI is the free, public REST API operated by Bloomberg as the FIGI Registration Authority for the Object Management Group (OMG) Financial Instrument Global Identifier standard. It maps third-p...

OpenFeature Evaluation API

The OpenFeature specification defines a standard API for feature flag evaluation across languages. It includes the Evaluation API for resolving flag values with context, the Provider API for connec...

OpenID Connect (OIDC) Authentication API

The OpenID Connect (OIDC) API is a lightweight identity layer built on top of OAuth 2.0. It enables applications to verify user identity through the Authorization Code Flow, Implicit Flow, and Hybr...

OpenID Connect API

Core OpenID Connect API endpoints for authentication and identity, including discovery, authorization, token exchange, and user information.

OpenLaws Legal Data API

The OpenLaws Legal Data API exposes statutes, regulations, constitutions, and case law across 53 U.S. jurisdictions through a unified data model. It supports keyword and BM25 / hybrid search scoped...

OpenMenu API

The OpenMenu REST API returns structured restaurant and menu data built on the OpenMenu Format. Standard endpoints include search, restaurant, location, deals, and ingredients, returning menu items...

OpenMercantil Public API

Public JSON REST API exposing Spanish company search, company reports, registry event timelines, officer records, person reports, daily BORME summaries, CNAE sector navigation, public-procurement r...

OpenMetadata REST API

The OpenMetadata REST API provides programmatic access to metadata assets including tables, dashboards, pipelines, topics, ML models, data quality tests, lineage graphs, glossaries, classifications...

OpenMeter Billing and Plans API

Turns metered usage into revenue - product-catalog plans, customers, billing profiles, and invoices - with Stripe-backed invoicing and payment collection.

OpenMeter Entitlements API

Creates and manages metered, boolean, and static entitlements per subject and returns the entitlement value - hasAccess plus current balance, usage, and overage - so applications can gate features ...

OpenMeter Events Ingestion API

Ingests single or batched usage events that follow the CloudEvents 1.0 specification (application/cloudevents+json and cloudevents-batch+json), and lists ingested events for debugging. Event id ena...

OpenMeter Features API

Defines the features that entitlements attach to, optionally bound to a meter for metered entitlements; supports create, list, get, and archive.

OpenMeter Grants API

Issues, lists, and voids usage grants that top up a metered entitlement's balance, with priority-based burn-down, expiration, and recurrence for allowances and credits.

OpenMeter Meters API

Create, list, get, and delete meters that aggregate CloudEvents by eventType using SUM, COUNT, UNIQUE_COUNT, AVG, MIN, or MAX, reading the metered value and group-by dimensions from event data via ...

OpenMeter Notifications API

Manages webhook notification channels and rules (such as entitlement balance thresholds) and lists delivered notification events with per-channel delivery status, so systems react to usage as it ha...

OpenMeter Subjects API

Upserts, lists, gets, and deletes subjects - the keys (users, customers, tenants) that events are attributed to and that entitlements are provisioned against, optionally mapped to a Stripe customer.

OpenMeter Usage Query API

Queries aggregated usage for a meter across a time range with MINUTE / HOUR / DAY windows, filtered and grouped by subject and custom groupBy dimensions, plus listing the subjects that have reporte...

OpenObserve

OpenObserve HTTP API for ingesting logs, metrics, and traces; running SQL and PromQL search; managing alerts, dashboards, folders, pipelines, reports, RUM, saved views, service streams, and short U...

OpenPanel API

The OpenPanel API allows developers to track events, manage projects, retrieve analytics data, and integrate OpenPanel product analytics into applications and workflows programmatically.

OpenPipe Platform API

OpenAI-compatible chat completions, model and dataset management, training jobs, criteria-based judging, request reporting (OpenAI and Anthropic), tag/metadata updates, caching, and Anthropic proxy...

OpenProject API v3

The OpenProject API v3 is a hypermedia REST API (HATEOAS, HAL+JSON) for managing work packages, projects, users, time entries, attachments, custom fields, and other OpenProject resources. It suppor...

OpenReplay API

The OpenReplay API provides programmatic access to session replay data, user events, error logs, and performance metrics, enabling developers to integrate session replay and analytics into their wo...

OpenRouteService Directions API

Provides turn-by-turn routing directions for multiple transport profiles including driving, cycling, walking, hiking, and wheelchair, supporting up to 50 waypoints with avoid areas, alternative rou...

OpenRouter

OpenRouter provides unified access to hundreds of AI models through a single API endpoint. It implements the OpenAI API specification for chat completions, allowing developers to use any model with...

OpenRouter Chat Completions API

The Chat Completions API is the primary endpoint for generating model responses. It supports text and image inputs, streaming via Server-Sent Events, tool and function calling, structured outputs, ...

OpenRouter Generation API

The Generation API allows querying for generation statistics and historical usage data, including token counts, cost calculations, cached token tracking, and reasoning token counts for completed re...

OpenRouter Keys Management API

The Keys Management API enables programmatic creation, rotation, and management of OpenRouter API keys. Common use cases include SaaS applications that automatically create unique keys for each cus...

OpenRouter Models API

The Models API allows developers to list and discover all available AI models and their properties, including pricing, context lengths, supported features, and provider information. Endpoints inclu...

OpenSSF Scorecard API

The OpenSSF Scorecard API returns automated security health metrics for public open source repositories. Scorecard runs a series of checks (e.g., Branch-Protection, Code-Review, Pinned-Dependencies...

OpenSSH Key Management API

OpenSSH is the premier open-source SSH implementation. While SSH itself is a protocol, OpenSSH provides programmatic interfaces for key management, authorized_keys configuration, known_hosts manage...

OpenSea Account API

Retrieve OpenSea account profiles, resolve ENS/usernames, and access portfolio analytics including net worth history, P&L tracking, owned collections, favorites, listings, and offers.

OpenSea Collection API

Query NFT collection details, traits, floor prices, holders, offer aggregates, trending and top collections. Supports batch retrieval by slugs and discovery of new and popular collections.

OpenSea Drops API

Discover NFT drops, check mint eligibility, build mint transactions, deploy NFT contracts, and track transaction receipts for minting operations.

OpenSea Events API

Retrieve historical NFT marketplace events including sales, transfers, mints, and cancellations by account, collection, or individual NFT. Also supports real-time event streaming via the Stream API...

OpenSea Listing API

Create, fulfill, and query NFT listings on OpenSea. Supports best listing retrieval per collection or NFT, cross-chain fulfillment, and collection sweep purchases with automatic substitution for un...

OpenSea NFT API

Retrieve individual NFT metadata, ownership, rarity, analytics, and owners across supported blockchain chains. Supports batch NFT retrieval, metadata refresh, validation, and collection-based listing.

OpenSea Offer API

Build, create, fulfill, and query NFT offers and bids on OpenSea. Supports collection-wide offers, trait-based offers, item-specific bids, and best-offer retrieval per NFT.

OpenSea Order API

Look up and cancel individual orders by chain, protocol address, and order hash. Supports both Seaport listing and offer orders.

OpenSea Search API

Search across OpenSea collections, NFTs, tokens, and accounts by keyword. Powers discovery of assets and creators across the OpenSea marketplace.

OpenSea Swap API

Get swap quotes and execute token trading with executable transaction data across supported blockchain chains.

OpenSea Token API

Retrieve fungible token details, balances, holders, liquidity pools, price history, OHLCV candlestick data, trending tokens, and swap quotes for token trading across supported chains.

OpenSearch Security Plugin REST API

The Security plugin REST API lets administrators programmatically create and manage internal users, roles, role mappings, action groups, tenants, security configuration, audit log configuration, al...

OpenShift REST API

Main REST API for managing OpenShift clusters, projects, and resources.

OpenSky Network REST API

REST API for retrieving real-time and historical ADS-B aircraft state vectors, flight tracks, and airport arrival and departure data from the OpenSky Network crowd-sourced receiver network.

OpenStack

OpenStack is a programmable infrastructure platform for managing virtual machines, containers, and bare metal at cloud scale, with a broad set of REST APIs across compute, networking, storage, iden...

OpenStack Compute (Nova) API

Nova is the OpenStack Compute service that manages the lifecycle of compute instances (virtual machines, bare-metal, containers). The API exposes endpoints for servers, flavors, images, key pairs, ...

OpenStack Identity (Keystone) API

Keystone is the OpenStack Identity service that provides authentication, authorization, and a service catalog for an OpenStack cloud. Tokens issued by Keystone are required to call any other OpenSt...

OpenStatus Checks

Run on-demand synthetic checks against a URL from one or more regions without creating a persistent monitor, returning per-region latency and assertion results.

OpenStatus Incidents

List, retrieve, acknowledge, and resolve incidents automatically opened when a monitor fails its assertions, tying detected downtime back to the originating monitor.

OpenStatus Monitors

Create, read, update, and delete HTTP, TCP, and DNS uptime monitors running across 28 global regions, with periodicity, assertions, retries, timeouts, and OpenTelemetry export. Includes monitor sum...

OpenStatus Status Pages

Create and manage public status pages with custom domains, access controls (public, password, email-domain), grouped monitor components, and email subscribers.

OpenStatus Status Reports

Create and manage status reports and their timeline of updates (investigating, identified, monitoring, resolved) that publish incident communications to a status page and its affected monitors.

OpenStreetMap Main Editing API v0.6

The OpenStreetMap main API v0.6 provides CRUD operations for map data editing including nodes, ways, relations, changesets, and notes. Requires OAuth 2.0 authentication for write operations. Maximu...

OpenStreetMap Nominatim Geocoding API

Nominatim is the OpenStreetMap geocoding API providing search (forward geocoding), reverse geocoding, and address lookup for OSM objects. Rate limit is 1 request/second for the public instance. Req...

OpenTelemetry Protocol (OTLP) HTTP API

The OTLP HTTP API provides endpoints for exporting traces, metrics, and logs using the OpenTelemetry Protocol, the native wire format for transmitting telemetry data between instrumented applicatio...

OpenTopography API

Access global and regional topographic raster datasets including SRTM, ALOS World 3D, NASADEM, Copernicus DSM, USGS 3DEP DEMs (1m, 10m, 30m), and bathymetry products. Provides programmatic retrieva...

OpenTripMap API

REST API providing access to over 10 million tourist attractions and points of interest worldwide. Supports place list queries by bounding box, radius, name, category, and rating; place detail look...

OpenUV

Real-time global UV index API returning current UV index, daily maximum UV, ozone, sun position, and safe exposure times by skin type for any latitude/longitude. Supports forecast windows and recom...

OpenWeather One Call API

The One Call API provides current weather, minute-by-minute forecast for one hour, hourly forecast for 48 hours, daily forecast for 8 days, and government weather alerts for any geographic coordina...

OpenZeppelin Defender API

The OpenZeppelin Defender API provides programmatic access to the Defender security platform, enabling management of smart contract deployments, transaction relaying, automated monitoring, on-chain...

OpenZeppelin Relayer API

The OpenZeppelin Relayer is an open-source transaction relay infrastructure service that enables decentralized applications to submit and manage blockchain transactions across EVM-compatible networ...

Opendatasoft Explore API v2.1

RESTful API for searching, browsing, and retrieving records from datasets hosted on any Opendatasoft-powered portal. Supports full-text search, filtering via ODSQL, geographic queries, aggregation/...

Opendock Nova (Neutron) API

Production REST API at https://neutron.opendock.com (staging neutron.staging.opendock.com) powering the Opendock Nova warehouse dock-scheduling platform. 151 endpoints covering warehouses, docks, l...

Openlayer Commits and Test Results API

Create and list project commits (versions), retrieve a single commit, evaluate tests, and fetch commit and inference-pipeline test results to gate deployments on evaluation outcomes.

Openlayer Data Stream API

Publish production inference data (rows) to an inference pipeline via the data-stream endpoint, mapping input variables, outputs, token counts, costs, timestamps, and ground truth for continuous mo...

Openlayer Inference Pipelines API

Create, retrieve, update, and delete inference pipelines for monitoring production models, plus manage pipeline rows, sessions, and users used in production observability.

Openlayer Projects API

Create, list, and delete projects, and manage the tests defined within a project. Projects are the top-level container for models, datasets, commits, and inference pipelines.

Openpay Charges API

Create and manage charges against cards, convenience stores (cash), and banks (SPEI) at both merchant and customer level, including capture, refund, and listing of transactions.

Openpay Customers and Cards API

Create, retrieve, update, list, and delete customers, store and manage their cards at merchant or customer level, and tokenize card data client-side to reduce PCI scope.

Openpay Fees API

Charge commission fees to a customer's Openpay balance, typically used in marketplace and split-payment scenarios, and list previously collected fees.

Openpay Payouts and Transfers API

Send payouts to registered bank accounts, move funds between customers with transfers, and manage customer bank accounts used as payout destinations.

Openpay Subscriptions and Plans API

Define plans as templates for recurring charges (amount and frequency) and associate customers and cards to those plans through subscriptions, with full create, update, cancel, and list operations.

Openpay Webhooks API

Register, verify, retrieve, list, and delete webhook endpoints that receive POST notifications for transaction events such as charge.succeeded, charge.refunded, charge.failed, and payout events.

Opentrons HTTP API

The Opentrons HTTP API is a RESTful JSON-based interface exposed by Opentrons robots (Flex and OT-2) on the local network at port 31950. It enables developers to upload and manage protocols, create...

Operator Lifecycle Manager

The Operator Lifecycle Manager (OLM) extends Kubernetes with a declarative API for installing, upgrading, and managing the lifecycle of Operators and their dependencies in a cluster. OLM provides c...

Opik REST API

The Opik REST API provides programmatic access to all platform capabilities including logging traces and spans from LLM applications, managing datasets and experiment items, running evaluations, st...

Opkit Benefits API

Read structured benefit details returned by a completed eligibility inquiry - plan status, network status, copays, coinsurance, deductibles, and out-of-pocket maximums.

Opkit Eligibility Inquiries API

Create and retrieve real-time insurance eligibility inquiries to determine whether a patient's coverage is active, in- or out-of-network, and what cost-sharing applies. Submitted against a payer fo...

Opkit Patients API

Create, retrieve, update, and list patient records used as the subject of eligibility inquiries, including demographics and member identifiers needed for verification.

Opkit Payers API

List and retrieve the insurance carriers (payers) Opkit connects to across the United States, used to identify the correct payer when creating an eligibility inquiry.

Opkit Webhooks API

Register and manage webhook endpoints to receive event notifications - such as an eligibility inquiry completing - so applications can react to asynchronous results without polling.

OpsGenie Account API

Retrieve account-level information and configuration settings. Access details about an OpsGenie account including plan information and account metadata. Foundational API for administrative operatio...

OpsGenie Alert API

Programmatically create, update, close, and manage alerts within the OpsGenie incident management platform. Alert creation, deletion, and action requests are processed asynchronously to provide hig...

OpsGenie Escalation API

Manage escalation policies that define how alerts are routed when initial responders do not acknowledge them. Create, update, retrieve, and delete escalation configurations with rules defining sequ...

OpsGenie Heartbeat API

Set up and manage heartbeat monitors that track the health and availability of systems and services. Heartbeats expect periodic pings from monitored systems and generate an alert when a ping is not...

OpsGenie Incident API

Create and manage incidents programmatically. Supports defining responders, tags, custom details, priority levels, and impacted services for each incident. Available to Standard and Enterprise plan...

OpsGenie Integration API

Programmatically manage integrations that connect OpsGenie with third-party monitoring, ticketing, and communication tools. Create, enable, disable, and configure integrations and their associated ...

OpsGenie Maintenance API

Manage maintenance windows that suppress alert notifications during planned maintenance periods. Create, update, list, and delete maintenance windows with configurable time ranges and rules for whi...

OpsGenie Notification Rule API

Manage notification rules that control how and when users receive alert notifications. Create, update, and delete notification rules, including conditions, time restrictions, and notification chann...

OpsGenie Schedule API

Programmatically manage on-call schedules and rotations. Create, update, and delete schedules, manage rotations and overrides, and query who is currently on call. Enables custom dashboards and inte...

OpsGenie Service API

Manage services within the OpsGenie platform. Services represent business-critical applications and components that can be associated with incidents to track impact. Used in conjunction with the In...

OpsGenie Team API

Manage teams within the OpsGenie platform. Create, update, retrieve, and delete teams, manage team members and their roles. Teams are a core organizational unit used to route alerts and assign on-c...

OpsGenie User API

Manage user accounts within the OpsGenie platform. Create, retrieve, update, and delete users, list users, and retrieve escalations associated with specific users. Supports managing user roles, con...

OpsRamp

OpsRamp is an AIOps and IT operations management platform for hybrid infrastructure monitoring and management.

OptScale

OptScale REST API for managing organizations, cloud accounts, employees, pools, resources, expenses, and optimization recommendations across AWS, Azure, GCP, Alibaba Cloud, and Kubernetes.

Optimism Etherscan API

The Optimism Etherscan API provides developer access to OP Mainnet blockchain data via REST endpoints. Modules cover accounts (balances, transaction lists, token transfers), contracts (ABI, source ...

Optimizely CMP Open REST API

The Optimizely Content Marketing Platform (CMP) Open REST API provides programmatic access to Optimizely's content marketing and planning tools. Developers can manage content workflows, campaigns, ...

Optimizely Campaign REST API

The Optimizely Campaign REST API provides programmatic access to Optimizely's email and omnichannel campaign management capabilities. Developers can use the API to manage campaigns, recipients, mai...

Optimizely Commerce Service API

The Optimizely Commerce Service API provides RESTful access to Optimizely's e-commerce platform capabilities. It enables developers to manage product catalogs, orders, customers, and inventory prog...

Optimizely Content Delivery API

The Optimizely Content Delivery API is a flexible REST API for building headless CMS solutions with Optimizely CMS. It provides a pluggable and configurable web API for querying content, enabling d...

Optimizely Content Management API

The Optimizely Content Management API provides REST endpoints for performing content operations within Optimizely CMS. Developers can create, read, update, and delete content items programmatically...

Optimizely Data Platform REST API

The Optimizely Data Platform (ODP) REST API enables developers to integrate customer data with the Optimizely Data Platform. It provides endpoints for managing customer profiles, events, segments, ...

Optimizely Feature Experimentation REST API

The Optimizely Feature Experimentation REST API enables developers to programmatically manage feature flags, experiments, rollouts, and environments within the Optimizely Feature Experimentation pl...

Optimizely Graph API

Optimizely Graph is a unified content query and delivery service that provides access to content across Optimizely products through a single GraphQL API. It enables flexible data retrieval, high-pe...

Optimizely Web Experimentation REST API

The Optimizely Web Experimentation REST API provides programmatic access to Optimizely's A/B testing and web experimentation platform. Developers can manage experiments, projects, audiences, and ot...

Oracle Accounts Payable API

API for managing supplier invoices, payments, and payables operations.

Oracle Accounts Receivable API

API for managing customer invoices, receipts, and receivables operations.

Oracle Analytics Cloud API

RESTful API for Oracle Analytics Cloud enabling data visualization, analytics, and business intelligence operations.

Oracle Autonomous Database API

API for managing Oracle Autonomous Database instances with self-driving, self-securing, and self-repairing capabilities.

Oracle Cloud Infrastructure (OCI) REST API

Comprehensive REST API for managing Oracle Cloud Infrastructure resources including compute, storage, networking, and databases.

Oracle Cloud Infrastructure Data Science API

API for managing machine learning models, notebook sessions, and data science projects.

Oracle Cloud Infrastructure Database API

API for managing Oracle Database services in Oracle Cloud Infrastructure.

Oracle Cloud Infrastructure Database API - Partitioning

OCI API for managing partitioned databases in Oracle Cloud.

Oracle Cloud Infrastructure REST API

APIs for managing Oracle Cloud Infrastructure resources.

Oracle Container Engine for Kubernetes

Oracle Container Engine for Kubernetes (OKE) REST API for managing Kubernetes clusters, node pools, virtual node pools, add-ons, and work requests on Oracle Cloud Infrastructure.

Oracle Database REST API - Partitioning

REST API endpoints for managing and monitoring Oracle Database partitioning operations.

Oracle EBS Financial Services API

APIs for financial management including General Ledger, Accounts Payable, Accounts Receivable, Fixed Assets, and Cash Management. These PL/SQL APIs can be deployed as REST or SOAP services through ...

Oracle EBS Human Resources API

APIs for human resources management, payroll processing, and workforce administration. Oracle HRMS provides PL/SQL packaged procedures and functions that serve as an open interface for managing emp...

Oracle EBS Integrated SOA Gateway REST API

RESTful web services for Oracle E-Business Suite modules exposed through the Integrated SOA Gateway (ISG). PL/SQL APIs, Java Bean Services, Application Module Services, and other interface types fr...

Oracle EBS Manufacturing API

APIs for discrete and process manufacturing operations including Bills of Material, Work in Process, and Work Orders. Provides programmatic access to manufacturing execution and planning functions ...

Oracle EBS Supply Chain Management API

APIs for inventory management, purchasing, order management, and logistics within Oracle E-Business Suite. Provides programmatic access to supply chain operations through PL/SQL interfaces deployab...

Oracle EBS e-Commerce Gateway API

Oracle e-Commerce Gateway provides EDI transaction support enabling Oracle E-Business Suite to exchange traditional Electronic Data Interchange documents with trading partners. Supports ASC X12 and...

Oracle ERP Cloud REST API

REST APIs for Oracle ERP Cloud covering modules like General Ledger, Accounts Payable, Accounts Receivable, Cash Management, and Fixed Assets.

Oracle Enterprise Manager Cloud Control REST API

REST API for Oracle Enterprise Manager Cloud Control providing access to monitoring, configuration, and administration capabilities including targets, metrics, incidents, blackouts, credentials, us...

Oracle Essbase REST API

RESTful API for managing and interacting with Oracle Essbase applications, databases, and performing analytical operations. Enables automation of Essbase resource management with endpoints for appl...

Oracle Financial Reporting API

Access financial reports, analytics, and business intelligence data.

Oracle Financials Accounts Payable API

Manage supplier invoices, payments, and expense reports.

Oracle Financials Accounts Receivable API

Manage customer invoices, receipts, and credit management.

Oracle Financials Cash Management API

Manage cash positioning, bank statements, and reconciliation.

Oracle Financials Expense Management API

Manage employee expenses, reimbursements, and expense reports.

Oracle Financials Fixed Assets API

Manage asset lifecycle, depreciation, and asset transfers.

Oracle Financials General Ledger API

Manage general ledger operations including journals, account balances, and period closings.

Oracle Fusion CX Sales and Fusion Service REST API

REST APIs for Oracle Fusion Cloud Customer Experience, enabling integration with sales force automation, fusion service, customer data management, and commerce applications. The API provides access...

Oracle Fusion Common Features REST API

REST APIs for Oracle Fusion Cloud Applications Common features, providing access to shared services such as attachments, flexfields, lookup types, roles, users, security, and approval workflows use...

Oracle Fusion EPM REST API

REST APIs for Oracle Fusion Cloud Enterprise Performance Management, enabling integration with planning, budgeting, forecasting, financial consolidation, account reconciliation, tax reporting, and ...

Oracle Fusion ERP REST API

REST APIs for Oracle Fusion Cloud ERP, providing programmatic access to financials, procurement, project management, and risk management capabilities. The API supports viewing and managing financia...

Oracle Fusion HCM REST API

REST APIs for Oracle Fusion Cloud Human Capital Management, enabling integration with core HR, talent management, workforce management, and payroll systems. The API provides access to employee reco...

Oracle Fusion Project Management REST API

REST APIs for Oracle Fusion Cloud Project Management, enabling integration with project planning, project costing, project billing, grants management, and project execution capabilities. The API su...

Oracle Fusion SCM REST API

REST APIs for Oracle Fusion Cloud Supply Chain Management, providing access to inventory, order management, procurement, logistics, and manufacturing capabilities. The API enables integration with ...

Oracle General Ledger API

API for managing general ledger operations including journals, budgets, and financial reporting.

Oracle GoldenGate Cloud Service API

Oracle Cloud Infrastructure API for managing GoldenGate deployments in OCI.

Oracle GoldenGate Data Streams REST API

REST API for distributing and managing Oracle GoldenGate data streams, enabling real-time data distribution to downstream consumers.

Oracle GoldenGate REST API

RESTful API for managing Oracle GoldenGate Microservices Architecture, including deployment configuration, process management, and monitoring.

Oracle GoldenGate Stream Analytics REST API

REST API for managing Oracle GoldenGate Stream Analytics pipelines, enabling real-time event stream processing, monitoring, and dashboard creation.

Oracle GoldenGate Veridata REST API

API for Oracle GoldenGate Veridata to verify and compare data between source and target systems.

Oracle GoldenGate for Big Data REST API

API for managing Oracle GoldenGate for Big Data deployments, allowing integration with Hadoop, Kafka, and other big data targets.

Oracle Health Millennium Platform FHIR R4 API

The Oracle Health Millennium Platform FHIR R4 API provides OAuth 2.0-secured access to Cerner Millennium EHR data in the HL7 FHIR R4 format, exposing USCDI-aligned resources such as Patient, Practi...

Oracle Integration Cloud API

REST API for Oracle Integration Cloud enabling application integration, process automation, and API management.

Oracle Integration Developer API

Developer API for Oracle Integration 3 providing day-to-day management of integrations, connections, packages, libraries, lookups, certificates, scheduled integrations, monitoring, B2B trading part...

Oracle Integration Process Automation API

REST API for Oracle Cloud Infrastructure Process Automation enabling management of process definitions, process instances, tasks, decision models, dynamic processes, identities, spaces, analytics, ...

Oracle Planning REST API

RESTful API for Oracle Planning and Budgeting Cloud Service providing access to planning applications, data, and metadata. Use the Planning REST APIs to manage and execute jobs, work with members, ...

Oracle Primavera P6 EPPM REST API

Oracle Primavera P6 EPPM REST API provides programmatic access to enterprise project portfolio management data including WBS structures, activity schedules, resource assignments, critical path anal...

Oracle Procurement REST API

REST API for managing procurement operations including requisitions, purchase orders, and supplier information.

Oracle REST Data Services (ORDS)

RESTful web services for Oracle Database enabling HTTP access to database resources, SQL queries, and PL/SQL procedures.

Oracle REST Data Services (ORDS)

RESTful API development and data access for Oracle Database.

Oracle Retail Merchandising Foundation Cloud Service API

Oracle Retail Merchandising Foundation Cloud Service provides REST APIs for managing merchandise hierarchies, item setup, purchase orders, cost management, and inventory transactions across omnicha...

Oracle Retail Order Management Suite Cloud Service API

Oracle Retail Order Management Suite Cloud Service provides REST APIs for omnichannel order orchestration, fulfillment, sourcing, and customer service across digital and physical retail channels.

Oracle SODA (Simple Oracle Document Access)

NoSQL-style document API for Oracle Database.

Oracle Siebel REST API

RESTful API for accessing Siebel business objects, business services, and repository objects. The Siebel REST API supports standard CRUD operations using HTTP verbs (GET, POST, PUT, DELETE) and is ...

Oracle Solaris Kernel Zones API

API for creating and managing Oracle Solaris Kernel Zones, which are non-global zones with their own kernel providing greater independence and enhanced security isolation.

Oracle Solaris StatsStore and Analytics API

REST API and web interface for accessing the Oracle Solaris 11.4 StatsStore, providing consolidated zone resource statistics, system performance data, and historical analytics via CLI, C, Python, a...

Oracle Solaris Unified Archives Zones API

API for creating, deploying, and managing Unified Archives for zone system recovery, cloning, and migration across Oracle Solaris systems.

Oracle Transactional Event Queues (TxEventQ)

Kafka-compatible event streaming and message queuing built into Oracle Database.

Oracle Transportation Management Business Object Resources REST API

Oracle Transportation Management Business Object Resources REST API enables programmatic access to in-system data and integrations with shipment orders, carriers, lanes, rates, and transportation p...

Orama Cloud Answer Sessions (RAG)

Generate grounded, conversational answers (retrieval-augmented generation) over an Orama Cloud index. The streaming answer endpoint powers the SDK AnswerSession (ask / askStream) with retrieved con...

Orama Cloud Documents

Insert, update, and delete documents in an Orama Cloud index. The notify endpoint performs incremental upsert (by id) and remove operations; the snapshot endpoint bulk-replaces the entire index. Ch...

Orama Cloud Indexes and Collections

Manage Orama Cloud indexes via the webhook management API - update the index schema, check for pending data, empty an index, and deploy queued changes worldwide. Index, project, and collection crea...

Orama Cloud Search

Run full-text, vector, and hybrid search queries against a deployed Orama Cloud index using a public read API key. Supports term, mode, where filters, limit, offset, threshold, and sortBy parameters.

Orange Business Device Location Retrieval API

Retrieve the network-derived location of a mobile device with operator-provided accuracy and confidence. Implements the CAMARA Device Location Retrieval API.

Orange Business Device Location Verification API

Verify whether a mobile device is within a specified geographic area without exposing precise coordinates. Returns match/no-match plus confidence. Implements the CAMARA Device Location Verification...

Orange Business Device Reachability Status API

Query whether a device is currently reachable over the mobile network (connected data, connected SMS, or not connected). Implements the CAMARA Device Reachability Status API.

Orange Business Device Roaming Status API

Query whether a device is currently roaming and, when permitted, in which country. Implements the CAMARA Device Roaming Status API and supports event subscriptions for roaming changes.

Orange Business Device Swap API

Detect changes to the device (IMEI) associated with a SIM, surfacing risk signals beyond SIM swap. Implements the CAMARA Device Swap API.

Orange Business Geofencing API

Create event subscriptions that notify when a device enters or leaves a defined geographic area. Implements the CAMARA Geofencing Subscriptions API for area-based event detection.

Orange Business KYC Match API

Match user-provided KYC attributes (name, address, date of birth, document numbers) against the operator's authoritative subscriber record and return a per-attribute match/no-match response. Implem...

Orange Business Number Verification API

Silent, network-based mobile phone number verification using the SIM in the end user's device. Replaces SMS OTP and authenticator flows for app onboarding, login, and password reset. Implements the...

Orange Business Population Density Data API

Predictive population density estimations for France and Corsica derived from anonymised aggregated mobile network signals. Returns per-area density bands for retail, mobility, urban planning, and ...

Orange Business Quality on Demand API

Request a temporary boosted network quality profile (latency, throughput, packet loss target) for a specified device session and application flow. Implements the CAMARA Quality on Demand API and un...

Orange Business SIM Swap API

Detect whether the SIM associated with a mobile phone number has been swapped recently. Used to flag account takeover risk before high-value actions (login, transfers, password reset). Implements t...

Orb

Orb is a billing infrastructure platform providing usage-based pricing, metering, and invoicing for API and cloud products.

Orb Alerts & Coupons API

Configure usage, cost, and credit-balance alerts on customers and subscriptions, and create, fetch, list, and archive coupons that grant discounts on subscriptions.

Orb Credits & Ledger API

Track and adjust customer credit balances through ledger entries, top-ups, credit blocks, and credit notes, addressable by Orb ID or external customer ID.

Orb Customers API

Create, fetch, update, list, and delete customers by Orb ID or external ID, manage balance transactions, costs, payment methods, and hosted portal sessions.

Orb Events & Ingestion API

Ingest timestamped, idempotent usage events into Orb's metering pipeline, then amend, deprecate, search, backfill, and inspect event volume that feeds billable metrics.

Orb Invoices API

Create one-off invoices, manage line items, fetch upcoming and issued invoices, issue, pay, mark as paid, void, and regenerate invoice and receipt PDFs.

Orb Metrics API

Create, fetch, list, and update billable metrics that aggregate raw events into quantities prices can charge against.

Orb Plans API

Define and version plans that bundle prices, with create, fetch, list, update, version, and migration operations addressable by Orb ID or external plan ID.

Orb Prices & Items API

Define unit, tiered, package, matrix, and other price models, evaluate prices against events, and manage the items that prices and invoice line items reference.

Orb Subscriptions API

Create, fetch, list, update, and cancel subscriptions, schedule and unschedule plan changes, redeem coupons, adjust price intervals and quantities, and read subscription usage, costs, and schedules.

Orb Webhooks API

At-least-once outbound webhooks for customer, subscription, invoice, credit note, and alert lifecycle events, signed with an HMAC-SHA256 X-Orb-Signature header and X-Orb-Timestamp for replay protec...

Orbit REST API

The Orbit REST API provides programmatic access to community data, allowing teams to add members and activities from any source, pull enriched data from their workspace, and view underlying data fr...

Orbital Query API

The Orbital Query API allows developers to submit TaxiQL queries to the Orbital data gateway for integrating, transforming, and discovering data across APIs, databases, event streams, and other dat...

Orbital Schema Management API

The Orbital Schema Management API provides endpoints for managing schemas, types, and data source definitions within an Orbital workspace. It allows developers to register, update, and remove Taxi ...

Orders API.

A demo orders API.

Ordoro API

The Ordoro REST API provides programmatic access to orders, products, inventory, shipments, purchase orders, suppliers, warehouses, and dropshipping workflows. It uses Basic HTTP Authentication wit...

Ordway REST API

RESTful API for bidirectional integration with the Ordway billing and revenue automation platform. Enables managing customers, subscriptions, invoices, payments, usage data, and revenue recognition...

Organisation Data Service - FHIR API

Access a comprehensive dataset of NHS health and social care organisations and sites. Retrieve organisation details by ODS code, search by name or location, and access organisational hierarchy info...

Orion Health FHIR API

Fast Healthcare Interoperability Resources (FHIR) API for accessing and exchanging healthcare data.

Orion Health HIE API

Health Information Exchange API for sharing patient information across healthcare organizations.

Orion Health Population Health API

API for population health management, analytics, and care coordination.

Orion Health Rhapsody Integration API

API for healthcare integration engine enabling connectivity between disparate healthcare systems.

Orkes

Orkes is a modern workflow orchestration platform built on Netflix Conductor for orchestrating microservices, AI agents, and durable workflows.

Ortto Campaigns API

Retrieve campaigns by time period (calendar), pull campaign and asset reports, and fetch the HTML or SMS body of email and SMS assets.

Ortto Custom Activities API

Send up to 100 custom activity events per request (2 MB max) and manage activity definitions, optionally creating or updating the associated person via merge_by or person_id.

Ortto People / Contacts API

Create or update one or more people (merge), retrieve people by query or by IDs, archive, delete, restore, and manage subscriptions and custom fields, with configurable merge strategies.

Ortto Tags API

Retrieve the list of tags configured on an account, optionally filtered by a search term; people are tagged and untagged through the people merge endpoint.

Ortto Transactional Email API

Send transactional (or, with non_transactional set, marketing) email and SMS via a single POST, with support for up to 5 base64-encoded attachments; the endpoint returns a 202 on acceptance.

Ortto Webhooks

Outbound webhooks delivered from Ortto journeys/playbooks let external systems react to contact and campaign events; configuration is done in the Ortto app rather than through a dedicated public RE...

Ory Hydra

Ory Hydra is an OAuth 2.0 and OpenID Connect server. It implements OAuth 2.0 authorization, OpenID Connect Core 1.0, and OpenID Connect Discovery for issuing and managing access tokens, refresh tok...

Ory Keto

Ory Keto is a permission and authorization server inspired by Google Zanzibar. It provides relationship-based access control (ReBAC), role-based access control (RBAC), and access control list (ACL)...

Ory Kratos

Ory Kratos is an identity and user management system. It handles registration, login, multi-factor authentication, account recovery, verification, profile management, and identity schemas with stro...

Ory Oathkeeper

Ory Oathkeeper is an identity and access proxy that authenticates, authorizes, and mutates incoming HTTP(S) requests using configurable access rules backed by Hydra, Kratos, and Keto.

Oso Cloud Authorization API

The Oso Cloud Authorization API provides REST endpoints for checking permissions, managing authorization facts, querying policies, and enforcing access control across applications and services. Cor...

Otreeba API

Open Cannabis Data for Your Technology. Standardized cannabis data and normalization for cannabis seed companies, strains, brands, products, batches, retailers, and studies through a REST API.

Otter Public API

The Otter Public API enables integrations across the digital food ecosystem, covering account pairing, orders, menus, delivery, finance, reports, reviews, storefront, loyalty, and store management....

OurPeople API

The OurPeople API uses common standards to allow easy read and write access to your data, with JWT authentication and broadcast delivery tracking endpoints.

Oura Activity API

Workout, session (meditation/breathwork/reset), and movement data captured by the Oura Ring. /v2/usercollection/workout returns auto-detected and manually logged workouts; /v2/usercollection/sessio...

Oura Daily Summaries API

Per-day scored summaries derived from Oura Ring sensor data — daily_activity, daily_sleep, daily_readiness, daily_resilience, daily_stress, daily_spo2, daily_cardiovascular_age, and vO2_max. Each d...

Oura Heart Rate API

Continuous heart-rate samples and interbeat interval (RR) data captured by the Oura Ring. /v2/usercollection/heartrate returns datetime-bounded BPM samples; /v2/usercollection/interbeat_interval re...

Oura Personal Info API

Retrieve the authenticated user's Oura profile including age, weight, height, biological sex, and email via /v2/usercollection/personal_info. Returned with the personal scope and represents the sta...

Oura Ring API

REST API v2 for accessing Oura Ring biometric data including sleep summaries, sleep stages, readiness scores, activity summaries, workouts, heart rate time series, heart rate variability, SpO2, bod...

Oura Ring Configuration API

Metadata about the Oura Ring hardware itself — color, design, firmware version, hardware type, set id, and ring battery level samples — via /v2/usercollection/ring_configuration and /v2/usercollect...

Oura Sandbox API

Mirror of the production usercollection endpoints under /v2/sandbox/usercollection/* that returns deterministic sample data without requiring a connected ring or real user consent. Used for integra...

Oura Sleep API

Detailed sleep period documents from the ring including HRV, respiratory rate, sleep stages, and movement plus recommended sleep_time windows and user-defined rest_mode_period blocks. Endpoints und...

Oura Tags API

User-authored annotations attached to specific days or events — legacy /v2/usercollection/tag and structured /v2/usercollection/enhanced_tag. Tags carry custom text, comments, and (for enhanced tag...

Oura Webhooks API

Create, list, renew, update, and delete event subscriptions over /v2/webhook/subscription. Each subscription targets a data_type (sleep, activity, readiness, tag, workout, session, daily_*, heartra...

Outbound Delivery API

Create and manage outbound deliveries, goods issue, and shipping documents. Supports delivery creation with reference to sales orders and subsequent logistics processing including goods issue posting.

Outbrain Amplify API

The Outbrain Amplify API enables advertisers, agencies, and technology partners to integrate Amplify campaign management and reporting into their own platforms. Core resources are Marketer, Campaig...

Outbrain Engage API

Publisher-facing content recommendation API. Returns mixed organic and paid (sponsored) recommendations for rendering in Outbrain widgets via the JS Widget, the iOS/Android Mobile SDK, Smartfeed, a...

Outline API

An RPC-style REST API that enables programmatic access to all aspects of Outline data including documents, collections, users, groups, comments, shares, attachments, revisions, and file operations....

Outlook Calendar API

Access to Outlook calendar events, scheduling, and meeting management.

Outlook Mail API

Access to Outlook email, including reading, sending, and managing messages.

Outreach Webhooks

Event-driven webhook deliveries for accounts, calls, contacts, email addresses, imports, Kaia recordings, mailings, opportunities, opportunity prospect roles, prospects, sequences, sequence states,...

Oxylabs Dashboard API

Account-management API for Oxylabs customers. Exposes usage statistics, filter instances, billing data, and team / sub-account management primitives used by the Oxylabs customer dashboard. Authenti...

Oxylabs Residential Public API

Sub-user management and usage-statistics API for residential proxy customers. Exchanges HTTP Basic credentials for a bearer token via /login, then exposes endpoints for creating, listing, updating,...

Oxylabs Web Scraper API

General-purpose web scraping API that returns rendered HTML and structured JSON from public web pages. Two delivery modes — Realtime (synchronous request/response against realtime.oxylabs.io) and P...

Oyster HR API

REST API for global employment operations including hiring, payroll, benefits, time off, expenses, invoicing, offboarding, and webhooks. Supports both customer-direct and reseller/partner integrati...

openFDA

openFDA provides public APIs for drug adverse events (FAERS), drug labeling (SPL), drug recall enforcement, NDC directory, Drugs@FDA, drug shortages, device adverse events (MAUDE), 510(k), PMA, UDI...

openFDA Animal & Veterinary API

Animal & Veterinary endpoint serving adverse event reports involving animal drug and feed products, submitted voluntarily by veterinarians, drug manufacturers, and animal owners.

openFDA Device API

Device-domain endpoints covering MAUDE adverse event reports, device classification, 510(k) premarket notifications, PMA premarket approvals, UDI Unique Device Identifier records, device recall enf...

openFDA Drug API

Drug-domain endpoints covering FAERS adverse event reports, Structured Product Labeling, drug recall enforcement reports, the National Drug Code Directory, Drugs@FDA approvals, and the FDA drug sho...

openFDA Food API

Food-domain endpoints covering food recall enforcement reports from the FDA Recall Enterprise System and CAERS food adverse event reports spontaneously submitted to FDA about foods and dietary supp...

openFDA Other API

Cross-cutting reference datasets including the NDC SPL Data Elements file of all drug products marketed in the US, the FDA Substance Registration System harmonized substance data, and historical FD...

openFDA Tobacco API

Tobacco endpoint serving tobacco product problem reports submitted to the FDA Center for Tobacco Products, covering unexpected health or quality issues with regulated tobacco items.

osmAPI Anthropic Messages API

Anthropic-compatible messages endpoint supporting system prompts, extended thinking, tool use, and streaming through osmAPI's gateway.

osmAPI Chat Completions API

OpenAI-compatible chat completions endpoint with smart routing, streaming, function calling, web search, and response healing across multiple LLM providers.

osmAPI Health API

Health check endpoint reporting service status and dependency connectivity.

osmAPI Models API

Endpoint for listing available AI models with pricing, context length, capabilities, and provider details.